add missing assertion (#230)

Co-authored-by: Guillem <[email protected]>

Author: alarbada

source/schema/avro_test.go

@@ -51,6 +51,7 @@ func Test_AvroExtract(t *testing.T) {
 	fields := rows.FieldDescriptions()
 
 	sch, err := Avro.Extract(table, fields)
+	is.NoErr(err)
 
 	t.Run("schema is parsable", func(t *testing.T) {
 		is := is.New(t)